Pontoon: Update Italian (it) localization of AMO Frontend
Pontoon: Update Italian (it) localization of AMO Frontend

Localization authors:
- Sara Todaro <sara.todaro@mozillaitalia.org>

kumar303/addons-frontend,kumar303/addons-frontend,mozilla/addons-frontend,aviarypl/mozilla-l10n-addons-frontend,kumar303/addons-frontend,aviarypl/mozilla-l10n-addons-frontend,aviarypl/mozilla-l10n-addons-frontend,mozilla/addons-frontend,kumar303/addons-frontend,tsl143/addons-frontend,mozilla/addons-frontend,tsl143/addons-frontend,tsl143/addons-frontend,mozilla/addons-frontend,tsl143/addons-frontend,aviarypl/mozilla-l10n-addons-frontend